app尺寸,去掉状态栏 CGRect r = [ UIScreen mainScreen ].applicationFrame; r=0,20,320,460 屏幕尺寸 CGRect rx = [ UIScreen mainScreen ].bounds; r=0,0,320,480 状态栏尺寸 CGRect rect; rect = [[UIApplication sharedApplication] statusBarFrame]; iphone中获取屏幕分辨率的方法 CGRect rect